ymurf Posted May 15, 2022 Member ID: 593 Content Count: 32 Reputation: 5 Joined: 08/20/2020 Status: Offline Last Seen: April 9, 2023 Share Posted May 15, 2022 I have noticed a high pitch metallic sound when driving my 2020 Defender HD8. Hard to explain but when driving its kinda mixed in with the normal transmission sound. I can hear a high pitch whining sound also. Anyone here experience this? Link to comment Share on other sites More sharing options...
Andystoy19 Posted May 15, 2022 Member ID: 133 Content Count: 692 Reputation: 151 Joined: 04/24/2019 Status: Offline Last Seen: 2 hours ago Share Posted May 15, 2022 Hard to diagnose over the internet but many of the Outlanders and Defenders have a squeal which is the pressure release valve on top of the fuel tank releasing pressure when the gas tank gets warm/hot. To check this stop and open the gas tank fill cap when you next hear the noise and if it stops you have found the source. There are several threads in the garage section if you want to replace the valve? 🙂 Link to comment Share on other sites More sharing options...
Hammes357 Posted May 20, 2022 Member ID: 1,030 Content Count: 47 Reputation: 5 Joined: 05/22/2021 Status: Offline Last Seen: December 14, 2023 Share Posted May 20, 2022 Fuel tank valve yes! My 2020 is the same as the metallic sound I’m guessing the brake pads. I’m getting ready to change mine just looking for the right answer to this question. Link to comment Share on other sites More sharing options...
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